About the QSI 683 WSG CCD Camera
The QSI 683wsg CCD camera employs the popular 8.3 megapixel Kodak (now TrueSense) full frame CCD imaging sensor. The KAF-8300 offers a large field of view in cameras using standard 1.25” filters. The 5.4um pixel size provides extremely high resolution. The sensor uses true two-phase charge transfer technology with a transparent gate that significantly increases optical response compared to traditional front illuminated full frame sensors. The superb imaging performance of 683 WSG camera is wrapped in an attractive, compact design with outstanding power efficiency and investment protecting upgradeability. The refined engineering and impressive fit, finish and attention to detail will surpass your highest expectations.The QSI 683wsg camera system is supported by industry-leading astronomy and microscopy image acquisition software, and a full camera control API is available for creating custom Windows or Linux applications.
QSI 683WSG CCD Camera Highlights
- The QSI 683 camera comes with a TrueSense KAF-8300 sensor, with 8.3MP and a peak QE of 60%
- All “WSG” models include an Integrated Guider Port (IGP); this one comes with C-threads.
- An 8-Position Color Filter Wheel comes ready for your threaded 1.25” filters
- High speed USB 2.0 with 16-bit output
- Dual read rates of 800kHz and 8MHz with virtually undetectable read noise
- Electronic shutter speeds to 100 microseconds
- Internal, even-illumination mechanical shutter for dark & bias frames
- Intelligent, programmable two stage TEC cooling to 45C below ambient
- ASCOM-compatible Windows COM API
- Linux drivers and API
About the KAF-8300 Imaging Sensor
The QSI 683wsg camera employs a Kodak KAF-8300 full frame CCD image sensor with micro-lensing technology. The KAF-8300 has excellent quantum efficiency between 350nm and 1000nm with peak QE of 57%. Low dark current and high pixel charge capacity results in a dynamic range exceeding 70db. The sensor has anti-blooming protection and a fast electronic shutter. Micro lenses cover the surface of the CCD to focus the light into each 5.4µm pixel, thereby increasing the optical response.
Kodak KAF-8300 Specifications
- CCD Architecture: Full Frame
- Micro-lensing: Yes
- Anti-Blooming: Yes - 1000x suppression
- Imager Size: 17.96 mm Wide x 13.52 mm High
- Pixel Array: 3326 x 2507 active pixels
- Total Number of Pixels: 8.3 megapixels
- Pixel Size: 5.4µm x 5.4µm
- Quantum Efficiency: Peak: 57%, 400nm 38%
- Dark Current Doubling: 5.8º C
- Intrinsic Read Noise: 8 electrons RMS
- Dynamic Range: 70db
About QSI Two-Stage TEC Cooling
The QSI 683wsg has a very efficient custom 2-stage thermoelectric cooler (TEC) subsystem. Intelligent, programmable cooling fans are integrated into the rear of the camera body to remove the heat generated by the cooler. Typically, forced air cooling lowers the regulated CCD temperature by up to 45°C below ambient utilizing 85% power. Tight +/- 0.1°C temperature regulation is maintained at temperature settings of 10°C below ambient and lower. A slim liquid heat exchanger (sold separately) can be attached to the rear of the camera body to increase the cooling further, up to 55°C below the temperature of the circulating fluid.
The cooled CCD image sensor is positioned in a hermetically sealed environmental chamber and covered with an anti-reflection precision optical window. The sealed chamber is purged with an ultra dry noble gas to increase heat conduction and eliminate the possibility of frost forming inside the chamber. To extend the useful period before re-purging is required, a user-rechargeable micro-sieve desiccant is employed to scavenge water molecules that enter the chamber. It is located behind a sub-micron, gas-permeable membrane to prevent particulate contamination of the CCD chamber.
QSI Integrated Guide Port WSG Upgrade with C-Threads
The QSI 600 Series WSG cameras provides a solution to the problems normally associated with guiding by integrating a Guider Port directly into the camera body. The pick-off prism is designed to sit in front of the filters so that you will always have all the star's light available for guiding.
The large 1/2” square pick-off prism of the integrated guide port is optimally positioned close to the internal filter wheel, supporting the use of guide cameras with large sensors, while preventing any vignetting of the main sensor, even with very fast optical systems. The Integrated Guide Port (IGP) is designed to support any camera with 12.5mm of back focus or less that can be attached using C-mount or T-mount threads.
The threaded adapter sits on top of the focus ring and allows the guide camera to be rotated to any position. The focus ring threads onto the focus base to allow 3mm of travel when focusing the guide camera. Once focus is achieved, the focus ring is locked with a set screw. The guide camera can still be rotated manually if desired without changing the focus. The end result is a rigid, easily focused guide camera that will not move or flex while your mount tracks the apparent motion of the night sky.
- Additional Information
SKU QS-683WSG-C-8 Manufacturer QSI Color or B&W? Monochrome (B&W) Sensor Type Full Frame Series QSI 600 Pixel Size 5-7 Microns Warranty 1 Year Warranty Sensor Manufacturer Truesense, formerly Kodak # of Sensors Single Sensor Front or Back Illumination Front Illuminated Sensor Model KAF-8300 CCD Class Standard Anti-Blooming Sensor? yes Micro-lensing Sensor? yes Quantum Efficiency 57% Peak Blue Enhanced Sensor? no Pixel Size in Micrometers 5,4um x 5.4um Pixel Array 3326 x 2504 (active) Integrated Guider? No, but includes Integrated Guide Port Binning Modes 1x1, 2x2, 3x3, 4x4, 5x5, 6x6, 7x7, 8x8, 9x9 Shutter Type Digital & Mechanical Dark Current <0.1 electron per second at 0°C Filter Wheel Yes Interface USB 2.0 Operating System Compatibility Linux (3rd Party), Windows Camera Cooling Type Liquid Cooled - Optional, Thermo-electric Cooling (TEC) Camera Body Dimensions W5.86” x H5.56” x D2.50” Camera Weight 51 ounces
Customer Reviews 2 item(s)
- Worth The Money
I was hesitant to spend this much cash, but I've had the camera a year now and haven't regreted it for a moment. Brilliant build quality and all around terrific piece of kit.
1= Houston, We Have a Problem & 5= It's Out of This World
- QSI 683 wsg
Perfect camera, perfect customer service. I had some issues and it was fixed at QSI. The camera works well and satisfactory.
I would not use any other camera.
1= Houston, We Have a Problem & 5= It's Out of This World
- Included Items
- QSI 683WSG-C-8 Monochrome CCD Camera - Kodak KAF 8300
- 8 Position Color Filter Wheel
- Integrated Guider Port with C threads
- T-Mount Camera Adapter
- T-Mount Adapter Cover
- T-Mount to 2" Nosepiece
- 12VDC/90-240VAC Power Supply
- 10' USB 2.0 Interface Cable
- 10' Standard Guider Cable
- QSI Standard Installation CD ROM
- Active X Developer's Toolkit
- Custom Fit Pelican Storage Case
- Questions & Answers
Product QuestionsHow much does the whole assembly weigh when mounted on a scope, with camera and self-guiding filter wheel?
- Support / Downloads
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